Seat arrangement for a vehicle

Patent metadata

Field	Value
Publication number	US-10525852-B2
Application number	US-201615271584-A
Country	US
Kind code	B2
Filing date	Sep 21, 2016
Priority date	Sep 21, 2016
Publication date	Jan 7, 2020
Grant date	Jan 7, 2020

Abstract

A seat arrangement for a vehicle includes first and second mounting brackets configured for attachment to a vehicle body. A seat back frame is attached to the first mounting bracket and is pivotable relative to the first mounting bracket around a first pivot axis. A seat cushion frame is pivotably attached to the second mounting bracket, and attached to the seat back frame such that the seat cushion frame and the seat back frame are pivotable relative to each other around a second pivot axis positioned above the first pivot axis when the seat back frame is in a use position.

First claim

What is claimed is:

1. A seat arrangement for a vehicle, comprising:
first and second mounting brackets configured for attachment to a vehicle body;
a seat back frame attached to the first mounting bracket and pivotable relative to the first mounting bracket around a first pivot axis;
a seat cushion frame pivotably attached to the second mounting bracket, and attached to the seat back frame such that the seat cushion frame and the seat back frame are pivotable relative to each other around a second pivot axis positioned above the first pivot axis when the seat back frame is in a use position; and
a seat back latch arrangement including a striker and a latch hook operable to capture the striker at a plurality of use positions of the seat back frame and to disengage the striker to release the seat back frame to facilitate pivoting the seat back frame forward around the first pivot axis.

2. The seat arrangement of claim 1 , wherein the second pivot axis is further positioned rearward of the first pivot axis when the seat back frame is in the use position.

3. The seat arrangement of claim 1 , further comprising a link having a first end pivotably connected to the seat cushion frame and a second end pivotably connected to the second mounting bracket such that the seat cushion frame moves linearly relative to the second mounting bracket when the seat back frame is pivoted forward around the first pivot axis.

4. The seat arrangement of claim 1 , further comprising a torsional biasing member connected to the seat back frame and the first mounting bracket and effective to pivot the seat back frame forward around the first pivot axis when the seat back frame is released by the seat back latch arrangement.

5. The seat arrangement of claim 4 , further comprising a damper arrangement operatively disposed between the seat back frame and the first mounting bracket and effective to dampen forward pivoting movement of the seat back frame around the first pivot axis.

6. The seat arrangement of claim 5 , wherein the damper arrangement includes a damper having a first portion rotationally fixed relative to the first mounting bracket and a second portion connected to the seat back frame to rotate with the seat back frame when the seat back frame pivots around the first pivot axis.

7. The seat arrangement of claim 6 , wherein the damper arrangement further includes a shaft disposed through a portion of the first mounting bracket and a portion of the seat back frame along the first pivot axis, the shaft being rotationally fixed to the first mounting bracket and having at least one flat portion extending along a length of the shaft for insertion into the first portion of the damper at a predetermined angular orientation relative to the seat back frame.

8. The seat arrangement of claim 1 , wherein the striker is attached to a frame of the vehicle and the latch hook is attached to and movable with the seat back frame, the striker including two rod portions disposed at positions corresponding to two different use positions of the seat back frame.

9. A seat arrangement for a vehicle, comprising:
a first mounting bracket configured for attachment to a vehicle body;
a seat back frame pivotably attached to the first mounting bracket at a first pivot axis;
a seat cushion frame pivotably attached to the seat back frame at a second pivot axis such that the seat cushion frame moves forward in response to the seat back frame being pivoted forward around the first pivot axis; and
a damper arrangement operatively disposed between the seat back frame and the first mounting bracket and effective to dampen forward pivoting movement of the seat back frame around the first pivot axis, the damper arrangement including a damper having a first portion rotationally fixed relative to the first mounting bracket and a second portion connected to the seat back frame to rotate with the seat back frame when the seat back frame pivots around the first pivot axis.

10. The seat arrangement of claim 9 , further comprising:
a second mounting bracket configured for attachment to the vehicle body; and
a link pivotably connected between the second mounting bracket and the seat cushion frame such that the seat cushion frame rotates relative to the second mounting bracket when moving forward in response to the seat back frame being pivoted forward around the first pivot axis.

11. The seat arrangement of claim 9 , wherein the second pivot axis is positioned above and rearward of the first pivot axis when the seat back frame is in a first use position.

12. The seat arrangement of claim 9 , further comprising a seat back latch arrangement operable to maintain the seat back frame in a first use position and a second use position wherein the seat back frame is pivoted rearward from the first use position around the first pivot axis.

13. The seat arrangement of claim 12 , a torsional biasing member connected between the seat back frame and the first mounting bracket and operable to automatically pivot the seat back frame forward round the first pivot axis when the seat back frame is released by the seat back latch arrangement.

14. The seat arrangement of claim 9 , wherein the damper arrangement further includes a shaft disposed through a portion of the first mounting bracket and a portion of the seat back frame along the first pivot axis, the shaft being rotationally fixed to the first mounting bracket and operatively connected with the first portion of the damper at a predetermined angular orientation relative to the seat back frame.

15. A seat arrangement for a vehicle, comprising:
a first mounting bracket configured for attachment to a vehicle body;
a seat back frame attached to the first mounting bracket and pivotable relative to the first mounting bracket around a first pivot axis;
a second mounting bracket configured for attachment to the vehicle body;
a seat cushion frame having first and second ends, the second end being pivotably attached to the second mounting bracket and the first end being pivotably attached to the seat back frame at a second pivot axis positioned rearward of the first pivot axis when the seat back frame is in a use position and positioned forward of the first pivot axis when the seat back frame is in a forward folded-down position; and
a link having a first end pivotably connected to the second end of the seat cushion frame and a second end pivotably connected to the second mounting bracket, and wherein the first end of the link is positioned above the second end of the link when the seat back frame is in the use position, and the first end of the link is positioned below the second end of the link when the seat back frame is in the forward folded-down position.

16. The seat arrangement of claim 15 , wherein the first end of the seat cushion frame rotates around the first pivot axis and the second end of the seat cushion frame rotates around the second mounting bracket when the seat back frame is pivoted between the use position and the forward folded-down position.

17. The seat arrangement of claim 15 , further comprising a damper having a first portion rotationally fixed relative to the first mounting bracket and a second portion connected to the seat back frame to rotate with the seat back frame when the seat back frame pivots around the first pivot axis, the damper being effective to dampen forward pivoting movement of the seat back frame around the first pivot axis.

18. The seat arrangement of claim 17 , further comprising a shaft disposed through a portion of the first mounting bracket

Assignees

• Lear Corp

Inventors

• Ma Jianliang

Classifications

• B60N2/3065 Primary

  in a longitudinal-vertical plane · CPC title

• B60N2/309

  rods · CPC title

• B60N2/366

  characterised by the locking device · CPC title

• B60N2/3013

  the back-rest being hinged on the vehicle frame · CPC title

• B60N2205/35

  Seat, bench or back-rests being split laterally in two or more parts · CPC title